Free surface modeling plays an important role in some ocean structures design, especially in Oscillating Water Column (OWC) devices. Boundary element method (BEM) is a suitable method for free surface modeling due to its simplicity, quick solving, and low data storage requirement. In this paper, BEM ...
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Free surface modeling plays an important role in some ocean structures design, especially in Oscillating Water Column (OWC) devices. Boundary element method (BEM) is a suitable method for free surface modeling due to its simplicity, quick solving, and low data storage requirement. In this paper, BEM was used for free surface modeling in OWC chamber and out of it. Linear kinematic and dynamic boundary conditions were used for free surface out of OWC chamber and nonlinear forms were used for free surface in the hamber. These boundary conditions were descritized by finite differences method (FDM). Also, some thermodynamics relations were applied for trapped air behavior modeling in OWC chamber. Wave specifications in Chabahar region due to its high power waves entered in programming code as input data. The results show a good agreement with results of other researches. Also, it is concluded that Iranian sea waves have no good potential for use ordinary OWC devices, because, a little power (about 10 KW) can be extracted from an OWC, in the best point.
In this study, boundary element method was used to model sea wave propagation on a hemisphere shape under water tank and oil-water common surface oscillation in the tank. Also, kinematic and dynamic oundary conditions of free surface and common surface of oil and water were discritized by Finite ...
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In this study, boundary element method was used to model sea wave propagation on a hemisphere shape under water tank and oil-water common surface oscillation in the tank. Also, kinematic and dynamic oundary conditions of free surface and common surface of oil and water were discritized by Finite difference method. There were some singularities in BEM method, which were removed by applying zoning method. The wave specifications and water depths, which were entered in numerical model, were extracted from Geographic and climatic profiles of Abuzar oil field region in Persian Gulf. The results show an acceptable accordance with ther researches. Also, the results illustrated that, using open ended storage tanks near our offshore platforms has not any problem and it can be a good proposal for oil storing by considering their advantages.